Struct LwwRegister 

pub struct LwwRegister<T: Clone> { /* private fields */ }

A Last-Writer-Wins Register

Stores a single value where concurrent writes are resolved by timestamp. Higher timestamp wins. In case of tie, higher node ID wins.

Implementations

impl<T: Clone> LwwRegister<T>

pub fn new(value: T, timestamp: Timestamp, node_id: NodeId) -> Self

Create a new register with an initial value

pub fn get(&self) -> &T

Get the current value

pub fn timestamp(&self) -> Timestamp

Get the timestamp

pub fn node_id(&self) -> &NodeId

Get the node that set the value

pub fn set(&mut self, value: T, timestamp: Timestamp, node_id: NodeId) -> bool

Set a new value if it has a higher timestamp

Returns true if the value was updated

pub fn merge(&mut self, other: &LwwRegister<T>) -> bool

Merge with another register (LWW semantics)

Returns true if our value was updated

Trait Implementations

impl<T: Clone + Clone> Clone for LwwRegister<T>

fn clone(&self) -> LwwRegister<T>

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl<T: Debug + Clone> Debug for LwwRegister<T>

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl<T: Clone + Default> Default for LwwRegister<T>

fn default() -> Self

Returns the “default value” for a type.

impl<T: PartialEq + Clone> PartialEq for LwwRegister<T>

fn eq(&self, other: &LwwRegister<T>) -> bool

Tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl<T: Clone> StructuralPartialEq for LwwRegister<T>